brandt



May 22, 1928. 1,670,563

J. w. BRANDT CYCLE SADDLE Filed Nov. 13, 1926 Patented May 22, 1928.

UNITED STATES PATENT OFFICE.

' PAUL A; BANCEL, OF NUTLEY, NE'W JERSEY, ASSIGNOR TO INGERSOLL-RAND COM- PANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

SURFACE CONDENSER.

Application filed January This invention relates to condensers, but more particularly to a surface condenser having a plurality of cooling units in the form of groups'of tubes. The tubes of the several groups are so arranged that the number thereof decreases toward the outlet opening or each unit.

One object of the invention is to prevent the velocity of the vapor and gases from falling below a certain predetermined ratio during their passage through the condenser. Another object is to insure complete condensation and uniform penetration of the vapor by progressively decreasing the steam flow area and by causing the vapor to contact with an increased cooling area immediately prior to the evacuation of the uncondensable gases.

Other objects will be in partobvious and in part pointed out hereinafter. i

The invention consists of the combinations of elements, features oi? construction and arrangen'ient of parts having the general mode of operation substantially as hereinafter described and more particularly pointed out in the appended claims and illustrated in the accompanying drawings, in which 'Figure ,1 is a transverse sectional view in elevation of a surface condenser taken through Figure? on the line 11 looking in the direction of the arrows,

Figure 2 is'a longitudinal view in elevation partly broken away illustratingthe arrangement of the several cooling units,

Figure 3 is a transverse view in elevation partly in section illustrating a modification of the invention and taken through Figure 4 on the line 3-3 looking in the direction of the arrows, and i V Figure 4% is a side view in elevation and partly in section of the modification illustrated inl igurc 3 illustrating the manner in which the condensate and the spraying liquid are removed from the condenser by separate pumps.

Referring to the drawings and at iirst more particularly to the preferred modification illustrated in Figures 1 and 2, A indicates a casing having a steam inlet B and a condensate outlet C. Secured to the opposite ends of the casing A are tube sheets D which in this instance support groups oi tubes indicated by E and E which form main and secondary cooling units respectively, and convey water from a water head s, 1926. Serial No. 80,007.

G at one end of the condenser to a discharge head H at the opposite end of the casing A. The water head G in this instance has a connection J near the upper portion through which water may be introduced from any suitable source of supply. The head H has a connection K near the lower portion through which the water may be discharged from the condenser.

1n the present instance the tubes E comprising the main unit are preferably spaced in the usual manner and consist of the usual number in the upper portion of the casing A and decrease in number toward the lower portion of said-unit. The spacing of the tubes E in the lower portion of the main cooling unit is preferably similar to that of the upper portion.

In accordance with the present invention, the tubes F which comprise the secondary cooling unit are arranged in inverted V-shaped formation to extend upwardly into the main cooling unit. The tubes F are preferably of the same cross sectional area as the tubes E and are spaced considerably closer than the tubes E so that a greater proportion of cooling area is presented to the vapor and gases passing theretiu'ough.

Suitable means are provided for dividing the main and secondary cooling units. To this end a pair of inclined battles L and O are arranged longitudinally through the casing A to converge at a point above the secondary cooling unit. At the base of the battles L and O are formed a plurality of orifices P through which vapor and gases may pass from the main to the secondary cooling unit and also for the purpose of permitting the cscapeot' condensate from the main cooling unit to the outlet C.

In order to provide a passage for the uncoudensable gases from the condenser. an outlet opening Q is formed at the top of the secondary unit. A pipe or connection R arranged to register with said outlet opening is adapted to convey such uncondensable gases to av point outside of the casing A. The means for evacuating the gases from the condenser are not shown, but may Consist of any well-known and suitable means, such as for instance a st am jet, or a vacuum pump.

In Figures 3 and 4 the casing A is providcd with a main condensing unit, similar to that shown in Figures 1 and 2. Similar:

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also the eyes 42. The reach arms 4 and5 are necessarily contracted towards each other in order to permit the ends of the laterally extending portions 41 and 11 to enter the coils, but by the inherent resiliency of the wire spring material of which the reach arms are formed, the ends of the reach arms will again be restored to normal position and the portions 41 and 11 thereof will be projected into the bore of the intertwined helical coils.

When once assembled, as above described and as illustrated herein, the parts will re main in assembled position indefinitely, it being necessary in order to disassemble the mechanism to perform the ope at-ions in reverse order, that is, first contracting the rearmost portions of thearlns 4 and 5 towards each other to remove the endportions 41 and 11 from the interiors of the intertwined coils, then in unscrewing the reinforcing element 22 from the coils 27 and 28, expanding the eyes 42 to remove the eyes from the coils 27 and 28, and then unscrewing the threaded helical coils 26 from the reversely threaded ends 29 and 39 of the supporting arms 16 and 17, after which removal of the straps 23 and 33 will be effective to remove the supporting rod 15 and the reach element.

Having thus described my invention, I am aware that numerous and extensive departures may be made from the embodiment of my invention herein illustrated and described, but without departing from the spirit of my invention. I I

I claim:

1. In a saddle for cycles, the combination with a saddle seat longitudinally extending supporting reach members therefor disposed below the seat and making supporting contact at their forward ends to the under side of the seat pommel and adapted to be secured intermediate their ends to asaddle post, said reach members terminating at their rear ends below the seat cantle, but spaced therefrom, each of said reach members being provided with ends projecting laterally in opposite directions, each from the other, a weight supporting element depending from the seat cantle, apair of laterally spaced helical springs interconnecting the weight supporting elementand the reach member prongs, said springs each terminating at an end in laterally projecting coils, said reach member ends being spring-pressed into the axial opening through the convolutions of the laterally projecting coils.

2. In a saddle for cycles, the combination with a saddle seat, longitudinally extending supporting reach members therefor disposed below the seat and making supporting contact at their forward ends to the under side of the seat pommel and adapted to be secured intermediate their ends to a saddle post, said reach members terminating at their rear ends below the seat cantle, but spaced therefrom,

in laterally projecting prongs, and a pair of laterally spaced rods depending from the seat cantle, a helical spring telescoped over theend of each rod, each helical spring terminating at one end in closely wound wire convolutions, the ends of the rods having coarse screw threads formed on their exterior surfaces, said closely wound coil portions being screw-threaded onto the coarse threads of the rod ends, said helical springs being connected at their other ends to the prong portions of said reach members.

3. In a saddle for cycles, the combination with a saddle seat, longitudinally extending supporting reach members therefor disposed below the seat and making supporting contact at their forward ends to the under side of the seat pommel and adapted to be secured intermediate their ends to a saddle post, said reach members terminating at their rear ends below the seat cantle, but spaced therefrom, in laterally projecting prongs. and a pair of laterally spaced rods depending from the seat cantle, a helical spring telescoped over the end of each rod, each helical spring terminating atone end in closely wound wire convolutions, the ends of the rods having coarse screw threads formed on their exterior surfaces, said closely wound coil portions being screw-threaded onto the coarse threads of the rodends, said helical springs terminating at their other ends in laterally extending closely wound coils each having an axial bore, saidreach member prongs being projected each through thebore of one of said coils.

4. In a saddle for cycles, the combination with a saddle seat, longitudinally extending supporting reach members therefor disposed below the seat and making supporting contact at their forward ends to the under side of the seat pommel and adapted to be secured intermediate their ends to a saddle post, said reach members terminating at their rear ends below the seat cantle, but spaced therefrom, in laterally projecting prongs, and a pair of laterally spaced rods depending from. the seat cantle, a helical spring telescoped over the end of each rod, each helical spring terminating at its lower end in axial closely wound wire convolutions, the ends of the rods having coarse screw threads formed on their extcrior-surfaces, said closely wound coil portions being screw-threaded onto the coarse tl'n'eads of the rod ends, said helical springs being connected at their other ends to the prong portions of said reach members.

5. In a saddle for cycles, the combination with asaddle seat, longitudinally extending supporting reach members therefor disposed below the seat and making supporting contact attheir forward ends to the under side of the seat pommel and adapted to be secured intermediate their ends to a saddle tion upon a saddle post, the rear ends of the arms being turned outwardly from each other in substantially axial alignment, of a substantially U-shaped support depending from the cantle, with its two depending arms laterally spaced from each other, each of the depending arms containing a coarse screw thread on its outer surface, helical springs comprising closely wound terminating coils telescoped over the ends of the arms and screw-threaded onto the threads thereof by its closely wound terminating coil portions, said helical springs terminating at their upper ends in substantially helical closely wound coils extending laterally from the springs toward each other, said coils having openings therethrough in substantially axial alignment adapted to receive the out-turned ends of the reach members, and a bridging element of spring wire material in the form of a loop, having terminating substantially axially aligned closely wound coils each screw-threaded onto one of the laterally extending terminating coils of one of the helical springs.

11. In a cycle saddle, the combination with a cycle seat having pommel and cantle portions, of a looped reach element secured at its mid-portion to the pommel and having rearwardly extending seat-supporting arms adapted to support the saddle by a mid-portion upon a saddle post, the rear ends of. the arms being turned outwardly from each other in substantially axial alignment, of a substantially U-shaped support depending from the cantle, with its two depending arms laterallyspaced from each other, each of the depending arms containing a coarse screw thread on its outer surface, helical springs comprising closely wound terminating coils telescoped over the ends of the arms and screw-threaded onto the threads thereof by its closely wound terminating coil portions, said helical springs terminatin at their upper ends in substantially helical closely wound coils extending laterally from the springs toward each other, said coils having openings therethrough in substantially axial alignment adapted to receive the out-turned ends of the reach members, and a bridging element of spring wire material in the form of a loop, having terminating substantially axially aligned closely wound coils each screwthreaded onto one of the laterally extending terminating coils of one of the helical springs, and a pair of rebound spring elements disposed above the helical springs and encircling the said depending arms, secured at their lower ends to the laterally extending closely wound coils, and terminating at their upper ends in convolutions of relatively small diameter disposed against the bends of the substantially U-shaped support.

12. In a cycle saddle, the combination with a saddle seat, of a spring support for the seat comprising a longitudinally extending reach element secured at an end to the pommel of the saddle and having a pair of rearwardly extending forks, of a set of four coiled springs at the rear of the saddle below the same arranged in quadrilateral formation, means joining the lower ends of the lowermost pair of springs to the cantle port-ion of the saddle, the end of each fork and adjoining ends of a pair of the said springs being joined together by entwining the ma- 2613521 of the springs about the end of such In testimony whereof I hereunto aflix my signature this 18 day of October, 1926.

JOHN W. BRANDT. 

